Theory Test Pro has dived into its results database to uncover the most failed theory test questions.

Test your own Highway Code knowledge by checking if you know the answers to the top questions our users fail to get right when practising. The correct answers are listed at the bottom of this blog post. Good luck!

1. Safety Margins“Overall stopping distance is made up of thinking distance and braking distance. You’re on a good, dry road surface, with good brakes and tyres. What’s the typical braking distance from 50 mph?”

a) 14 metres (46 feet) b) 24 metres (80 feet) c) 38 metres (125 feet) d) 55 metres (180 feet).

2. Rules of the Road“Where may you overtake on a one-way street?”

a) Only on the left-hand side b) Overtaking isn’t allowed c) Only on the right-hand side d) On either the right or the left.

3. Rules of the Road“When can you park on the right-hand side of a road at night?”

a) When you’re in a one-way street b) When you have your sidelights on c) When you’re more than 10 metres (32 feet) from a junction d) When you’re under a lamppost.

4. Accidents“A casualty isn’t breathing normally and needs CPR. At what rate should you press down and release on the centre of their chest?”

a) 10 times per minute b) 120 times per minute c) 60 times per minute d) 240 times per minute.

5. Alertness“What should you do before making a U-turn?”

a) Give an arm signal as well as using your indicators b) Check road markings to see that U-turns are permitted c) Look over your shoulder for a final check d) Select a higher gear than normal.

6. Motorway RulesYou’ve broken down on a motorway. In which direction should you walk to find the nearest emergency telephone?

a) With the traffic flow b) Facing oncoming traffic c) In the direction shown on the marker posts d) In the direction of the nearest exit.

**7. Safety Margins **In good conditions, what’s the typical stopping distance at 70 mph?

a) 53 metres (175 feet) b) 60 metres (197 feet) c) 73 metres (240 feet) d) 96 metres (315 feet).

8. Vulnerable Road UsersWhere should you never overtake a cyclist?

a) Just before you turn left b) On a left-hand bend c) On a one-way street d) On a dual carriageway.

The Answers

  1. C – 38 metres (125 feet)
  2. D – on either the right or the left
  3. A – when you’re in a one-way street
  4. B – 120 times per minute
  5. C – look over your shoulder for a final check
  6. C – in the direction shown on the marker posts
  7. D – 96 metres (315 feet)
  8. A – just before you turn left.